Abstract:
this paper shows the basic characteristics of researchers working in public accountancy programs or related fields, who belong to the research groups categorized by the colombian institute for the development of science and technology, francisco josé de caldas, colciencias, in its public announcement of selection 2008. aspects like the level of proficiency in languages of these researchers; the kind and field of instruction received, and the products they generate are presented in order to perform calculations of the relationships between group categories and level of instruction, with aims at establishing whether there is a fundamental parameter or not.

Abstract:
this paper studies the duration of unemployment in colombia and highlights their relationship with the job search channels. to achieve it, nonparametric kaplan-meier and parametric models with weibull function, were estimated. the information was taken from the great household survey in the second quarter of 2008. it found that although the formal channel or traditional channel to search job is not the most widely used, it is the most effective to reducing the duration of unemployment, further of statistical significance is evidence in favor of the colombian labor market rigidities.

Abstract:
pathophysiology of diastolic heart failure the principal clinical and pathophysiological characteristics of diastolic heart failure along with intrínsic and extrinsic factors that can induce or worsen it are discussed.